Unique Manufacturing Technology Taken to a New Level
Astell&products are often compared with art sculptures in that they feature colorful facets and angles that cannot be found in other products.
This is accomplished through the use of extremely precise metal manufacturing technology that has been perfected by Astell&Kern over many years.
The first generation KANN used an extrusion method to form the aluminum body where the KANN APLPHA uses precise metal manufacturing to create a luxurious and detailed design.
A precision mold is then separately manufactured for the high-gloss ceramic top cover.
Astell&Kern then uses more than seven different processes including low-speed machining to form the ceramic top cover and prevent cracking.
Unlike other manufacturers, a ring is not simply inserted into the ceramic top where each audio terminal is located, instead a gold PVD coating is applied to minimize noise. A special coating is also applied to the ceramic surface to prevent fingerprints and smudging.
Astell&Kern's proprietary aluminum body design suppresses noise to improve sound quality, while providing the best signal transmission to the audio circuits.
With our laser ground extension technology, you can achieve the best sound possible.
The vibration-free processing machines used by Astell&Kern are the same ones used by expensive Swiss luxury watch manufacturers.
This is reflected in the crafting of the volume wheel which is processed precisely like the crown of a luxury watch for the best operating feel.
Independent machining processing is applied to individual areas to create each small pattern.
Specification
General Specifications
Display
4.1inch HD 720 x 1280 Touch Display
Supported Audio Formats
WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
Sample rate
PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample) / DSD Native: DSD64(1bit 2.8MHz), Stereo
/ DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
Output Level
High: Unbalanced 6Vrms / Balanced 12Vrms (Condition No Load)
Mid: Unbalanced 4Vrms / Balanced 8Vrms (Condition No Load)
Low: Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load)
DAC
ESS ES9068AS x2 (Dual DAC)
Decoding
Support up to 32bit / 384kHz Bit-to-Bit Playback
Input
USB Type-C input (for charging PC & MAC)
Outputs
Unbalanced Out (3.5mm) / Optical Out(3.5mm)
Balanced Out (2.5mm, only 4-pole supported 4.4m, only 5-pole supported)
Wi-Fi
802.11 b/g/n (2.4GHz)
Bluetooth
V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)
Dimensions
2.68 ”(68.3 mm) [W] x 4.60 ”(117 mm) [H] x 0.98 ”(25 mm) [D]
Weight
about 11.14 oz (about 316 g)
Feature Enhancements
Firmware upgrades supported (OTA)
Audio Performance
Frequency Response
±0.021dB (Condition: 20Hz~20kHz) Unbalanced / ±0.024dB (Condition: 20Hz~20kHz) Balanced
±0.21dB (Condition: 20Hz~70kHz) Unbalanced / ±0.155dB (Condition: 20Hz~70kHz) Balanced
Signal to Noise Ratio
116dB @ 1kHz, Unbalanced / 117dB @ 1kHz, Balanced
Crosstalk
-128dB @ 1kHz, Unbalanced / -136dB @ 1kHz, Balanced
THD+N
0.0003% @ 1kHz, Unbalanced / 0.0005% @ 1kHz, Balanced
IMD SMPTE
0.0003% 800Hz 10kHz(4:1) Unbalanced / 0.0003% 800Hz 10kHz(4:1) Balanced
Output Impedance
Unbalanced Out 3.5mm (0.8ohm) / Balanced out 2.5mm (2.0ohm), 4.4mm(1.8ohm)
Clock source
Reference Clock Jitter
250 Femto Seconds(VCXO)
Battery
Capacity
5,600mAh 3.8V Li-Polymer Battery
Playback Time
About 14.5 hours (Standard : FLAC, 16bit, 44.1kHz, Vol.80, LCD Off, Low Gain)
Charge Time
About 3.5 hours (9V/1.67A Fast Charging) / 5hours (5V/2A General Charging)
Memory
Built-in Memory
64GB [NAND]
External Memory
microSD (Max. 1TB) x1
OS
Supported OS
Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up
- The image/specification may be changed without notice to improve product performance and quality.
What the Press is Saying

"The Kann Alpha is a worthy new iteration of the Kann series. Astell and Kern boast a pretty powerful machine that can carry a unique sound signature when paired with the right headphone or IEM. Battery life is a little on the shorter side, but it’s mainly a minor gripe since the Alpha can still last through a significantly long trip if you’re going portable. With the Kann Alpha Astell and Kern prove once again why they’re at the top of the DAP brands."